Analyze Multipage Document

The Analyze Multipage Document activity uses the Amazon Textract StartDocumentAnalysis and GetDocumentAnalysis APIs to analyze a multi-page document stored in an S3 bucket (Bucket,DocumentName, and Version). If your document includes a table, you have the option to indicate if the first row contains column headers (DiscoverColumnHeaders) and/or ignore empty rows (IgnoreEmptyRows).

After analyzing the document, the activity returns the document properties in a PageDetailCollection object (Pages) that you can use as input variables in other activities outside of the Amazon Textract Activities Package.

The Analyze Multipage Document activity is essentially a combination of the Start Document Analysis, Get Document Analysis Status, and Get Document Analysis activities in a single activity.

Important: In previous versions of this activity, the (Pages) output parameter returned a PageDetail[] object. In 2.0 this has been changed to a PageDetailCollection to allow us to return the RawJson property for the method call, which was not possible with an array.

How It Works

The following steps and message sequence diagram is an example of how the activity works from design time (i.e., the activity dependencies and input/output properties) to run time.

Complete the Setup steps.
Add the Amazon Scope activity to your project.
Add the Analyze Single Page Document inside the Amazon Scope activity.
Enter values for the S3 Storage input properties.
Create and enter a PageDetailCollection variable for your Output property.
Run the activity.
- Your input properties are sent to the AnalyzeDocument API.
- The API returns the PageDetail value to your output property variable.

Properties

The values for the following properties are specified when adding this activity to your project in UiPath Studio.

Common

DisplayName

The display name of the activity.

Attributes	Details
Type	`String`
Required	Yes
Default value	Analyze Multipage Document
Allowed values	Enter a `String` or `String` variable.
Notes	N/A

Input

Unlike the Get Document Analysis Status, which requires an external delay mechanism to poll the service for status changes, the Analyze Multipage Document includes the following, optional input properties to set an initial status check delay (InitialDelay) and status check interval (StatusCheckInterval).

InitialDelay

The amount of time to wait before the activity calls the Amazon Textract GetDocumentAnalysis API to retrieve the JobStatus value.

Attributes	Details
Type	`Int32` (milliseconds)
Required	No
Default value	15000 (not shown)
Allowed values	Enter a `Int32` or `Int32` variable.
Notes	Enter your value in milliseconds (e.g., 30000 for 30 seconds); your value must be greater or equal to 15000. When analyzing a large document, it's recommended that you enter the estimated time it takes for the Amazon Textract service to complete its analysis. For example, if your document takes up to 2 minutes to analyze, you should enter 120000 as your value and use the StatusCheckInterval property to indicate how often you want to check for an updated status if the job doesn't complete within the 2-minute estimate.

StatusCheckInterval

The amount of time to wait between calls to the Amazon Textract GetDocumentAnalysis API to retrieve the JobStatus value.

Attributes	Details
Type	`Int32` (milliseconds)
Required	No
Default value	10000 (not shown)
Allowed values	Enter a `Int32` or `Int32` variable.
Notes	Enter your value in milliseconds (e.g., 15000 for 30 seconds); your value must be greater or equal to 10000. The objective of this property is to help manage the number of calls that your activity makes to the Amazon Textract API.

Options

AnalysisType

Specifies the types of analysis to perform. Use Tables to return information about the tables that are detected in the input document and Forms to return detected form data.

Attributes	Details
Type	enum
Required	No.
Default value	All
Allowed values	All, Tables, Forms
Notes	N/A

DiscoverColumnHeaders

Indicates whether the tables in the document include column headers.

Attributes	Details
Type	Checkbox
Required	No
Default value	Not Selected
Allowed values	Selected or Not Selected
Notes	N/A

IgnoreEmptyRows

Indicates whether empty rows in the document tables should be ignored when analyzing the document.

Attributes	Details
Type	Checkbox
Required	No
Default value	Not Selected
Allowed values	Selected or Not Selected
Notes	N/A

S3 Storage

Bucket

The name of the S3 bucket where the document is stored.

Attributes	Details
Type	`String`
Required	Yes
Default value	Empty
Allowed values	Enter a `String` or `String` variable.
Notes	The AWS Region for the S3 bucket that contains the document must match the Region that you selected in the Amazon Scope activity. For Amazon Textract to process a file in an S3 bucket, the user must have permission to access the S3 bucket; for more information, see step 6 in the Create IAM User section of the Setup guide.

DocumentName

The case-sensitive name of the file in the specfied Bucket that you want to analyze.

Attributes	Details
Type	`String`
Required	Yes
Default value	Empty
Allowed values	Enter a `String` or `String` variable.
Notes	Supported document formats: PNG, JPEG, and PDF.

Version

If the bucket has versioning enabled, you can specify the object version.

Attributes	Details
Type	`String`
Required	No
Default value	Empty
Allowed values	Enter a `String` or `String` variable.
Notes	N/A

Misc

Private

If selected, the values of variables and arguments are no longer logged at Verbose level.

Attributes	Details
Type	Checkbox
Required	No
Default value	Not Selected
Allowed values	Selected or Not Selected
Notes	N/A

Output

Pages

The properties extracted from the specified document returned as an array.

Attributes	Details
Type	`PageDetailCollection`
Required	No (recommended if you plan to use the output data in subsequent activities)
Default value	Empty
Allowed values	Enter a `PageDetailCollection` variable
Notes	Each object from the array represents the results for one individual page. This is a change from previous versions which returned a `PageDetail[]` object. See Page Detail for the description of the of the PageDetail object and its properties.